http://common.ziffdavisinternet.com/...i=88082,00.jpg
Often, It has been hard to get soem intersesting Memory for your custom case. Some memory has a UV surface which shows up nicely in cases but other than that there hasn't been much for Modders to work with. Now Corsair Memory's latest RAM sports a 10 character LED display that delivers temperature, speed and voltage...or it can display your customized message.
It could be useful in some cases but I think it would look out of place in most cases. But this might just be the thing you want to see through your window. A bit steep at US$499.
Check out ExtremeTech
[EDIT] Good review there thanks for that Mr Slacker